The Greater Bay Area Cancer Registry (GBACR), gathers information about all cancers diagnosed or treated in a nine-county area:

  1. Alameda
  2. Contra Costa
  3. Marin
  4. Monterey
  5. San Benito
  6. San Francisco
  7. San Mateo
  8. Santa Clara
  9. Santa Cruz

Data from the GBACR have contributed to the National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) program and the statewide California Cancer Registry (CCR) which conducts essential monitoring of cancer occurrence and survival in California.